X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fmtd%2Fmaps%2Fts5500_flash.c;fp=kernel%2Fdrivers%2Fmtd%2Fmaps%2Fts5500_flash.c;h=9969fedb1f13c2be53859df396823260bd1b9740;hb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;hp=0000000000000000000000000000000000000000;hpb=98260f3884f4a202f9ca5eabed40b1354c489b29;p=kvmfornfv.git

diff --git a/kernel/drivers/mtd/maps/ts5500_flash.c b/kernel/drivers/mtd/maps/ts5500_flash.c
new file mode 100644
index 000000000..9969fedb1
--- /dev/null
+++ b/kernel/drivers/mtd/maps/ts5500_flash.c
@@ -0,0 +1,121 @@
+/*
+ * ts5500_flash.c -- MTD map driver for Technology Systems TS-5500 board
+ *
+ * Copyright (C) 2004 Sean Young <sean@mess.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * Note:
+ * - In order for detection to work, jumper 3 must be set.
+ * - Drive A and B use the resident flash disk (RFD) flash translation layer.
+ * - If you have created your own jffs file system and the bios overwrites
+ *   it during boot, try disabling Drive A: and B: in the boot order.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/types.h>
+
+
+#define WINDOW_ADDR	0x09400000
+#define WINDOW_SIZE	0x00200000
+
+static struct map_info ts5500_map = {
+	.name = "TS-5500 Flash",
+	.size = WINDOW_SIZE,
+	.bankwidth = 1,
+	.phys = WINDOW_ADDR
+};
+
+static struct mtd_partition ts5500_partitions[] = {
+	{
+		.name = "Drive A",
+		.offset = 0,
+		.size = 0x0e0000
+	},
+	{
+		.name = "BIOS",
+		.offset = 0x0e0000,
+		.size = 0x020000,
+	},
+	{
+		.name = "Drive B",
+		.offset = 0x100000,
+		.size = 0x100000
+	}
+};
+
+#define NUM_PARTITIONS ARRAY_SIZE(ts5500_partitions)
+
+static struct mtd_info *mymtd;
+
+static int __init init_ts5500_map(void)
+{
+	int rc = 0;
+
+	ts5500_map.virt = ioremap_nocache(ts5500_map.phys, ts5500_map.size);
+
+	if (!ts5500_map.virt) {
+		printk(KERN_ERR "Failed to ioremap_nocache\n");
+		rc = -EIO;
+		goto err2;
+	}
+
+	simple_map_init(&ts5500_map);
+
+	mymtd = do_map_probe("jedec_probe", &ts5500_map);
+	if (!mymtd)
+		mymtd = do_map_probe("map_rom", &ts5500_map);
+
+	if (!mymtd) {
+		rc = -ENXIO;
+		goto err1;
+	}
+
+	mymtd->owner = THIS_MODULE;
+	mtd_device_register(mymtd, ts5500_partitions, NUM_PARTITIONS);
+
+	return 0;
+
+err1:
+	iounmap(ts5500_map.virt);
+err2:
+	return rc;
+}
+
+static void __exit cleanup_ts5500_map(void)
+{
+	if (mymtd) {
+		mtd_device_unregister(mymtd);
+		map_destroy(mymtd);
+	}
+
+	if (ts5500_map.virt) {
+		iounmap(ts5500_map.virt);
+		ts5500_map.virt = NULL;
+	}
+}
+
+module_init(init_ts5500_map);
+module_exit(cleanup_ts5500_map);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Sean Young <sean@mess.org>");
+MODULE_DESCRIPTION("MTD map driver for Technology Systems TS-5500 board");
+